Building Oscillation Seismic Simulation, or BOSS, is an opportunity for students to explore the phenomenon of resonance of buildings that experience earthquake shaking. All buildings have a natural “resonance” frequency. If a building is shaken at this frequency, it will oscillate with large amplitude and may be severely damaged or destroyed. If the same building is shaken at either lower or higher frequencies, it will oscillate with smaller amplitudes and may withstand earthquake shaking without significant damage. Students can explore this phenomenon by experimenting with the natural frequencies of the BOSS Model and gain insights into how structures behave dynamically during earthquake shaking.